CDL Vehicle Combination Practice Test

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Prepare for the CDL Vehicle Combination Test. Access multiple choice questions, detailed answers, and hints to guide your study. Ace the exam with confidence!

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To unlock the fifth wheel, the release handle should be pulled to which position?

Open
Close
Neutral
Locked

The correct answer is: Open

To unlock the fifth wheel, the release handle should be pulled to the "Open" position. This action disengages the locking mechanism of the fifth wheel, allowing the trailer to be disconnected from the tractor unit. When the handle is in the open position, the jaws of the fifth wheel are retracted, ensuring that the trailer can be safely released from the hitch. Understanding the function of each position is crucial for proper coupling and uncoupling procedures. The closed position would keep the jaws engaged, making it impossible to detach the trailer. The neutral position is not typically associated with the fifth wheel's locking mechanism, and the locked position secures the trailer in place. Therefore, pulling the release handle to the open position is essential for safely unlocking the fifth wheel and ensuring smooth operations when coupling and uncoupling a vehicle combination.